A clinical trial comparing the effect of two different nerve blocks on diaphragm given to patients undergoing shoulder surgeries

Comparing diaphragm sparing effect of ultrasound guided combined subomohyoid anterior suprascapular nerve and axillary nerve block with interscalene nerve block in arthroscopic shoulder surgeries: a prospective randomized double blind controlled study - NIL

Status

Active, not recruiting

Phases

Phase 2

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2025/05/086481

Enrollment

Registered

2025-05-07

Start date

Unknown

Completion date

Unknown

Last updated

2025-05-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Intervention1: ultrasound guided combined subomohyoid anterior suprascapular nerve and axillary nerve block with interscalene nerve block in arthroscopic shoulder surgeries: Suprascapular nerve

Eligibility

Inclusion criteria

Inclusion criteria: 1.All the patients scheduled for for elective unilateral arthroscopic shoulder surgery under general anaesthesia. 2.ASA physical status I and II 3.Age 18-65 years

Exclusion criteria

Exclusion criteria: 1.Patients with known allergies to local anaesthetics. 2.Unwillingness to participate in the study 3.Infection at injection site 4.Coagulation disorders 5.Liver and kidney disease.

Design outcomes

Primary

Measure	Time frame
The primary aim of this study is to compare the Interscalene nerve block with combined Subomohyoid anterior Suprascapular nerve and Axillary nerve block in terms of diaphragm paralysis by assessing ultrasound guided ipsilateral diaphragmatic excursion. Timepoint: Hemi diaphragmatic excursion will be assessed during quiet breathing, deep inspiration and the sniff maneuver, before the block,30 minutes after, and 2 hours after recovery. Hemidiaphragmatic paralysis is defined as a more than 25% reduction in diaphragmatic excursion, with complete paralysis defined as a more than 75% reduction	—

Measure

Time frame

The primary aim of this study is to compare the Interscalene nerve block with combined Subomohyoid anterior Suprascapular nerve and Axillary nerve block in terms of diaphragm paralysis by assessing ultrasound guided ipsilateral diaphragmatic excursion. Timepoint: Hemi diaphragmatic excursion will be assessed during quiet breathing, deep inspiration and the sniff maneuver, before the block,30 minutes after, and 2 hours after recovery. Hemidiaphragmatic paralysis is defined as a more than 25% reduction in diaphragmatic excursion, with complete paralysis defined as a more than 75% reduction

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Secondary

Measure	Time frame
1.To compare pulmonary functions Forced vital capacity, forced expiratory volume in 1second & peak expiratory flow rate between Interscalene block & a combination of Subomohyoid anterior Suprascapular nerve block & Axillary nerve block. 2.To compare block related adverse outcomes such as numbness,tingling, weakness, dyspnea & hoarseness of voice between Interscalene block & a combination of Subomohyoid anterior Suprascapular nerve block & Axillary nerve block. Timepoint: 1.Forced vital capacity, forced expiratory volume in 1second & peak expiratory flow rate will be assessed 30 min before & after the regional procedure. The test will be repeated three times & the best values of respiratory parameters will be recorded. 2.Block related adverse outcomes such as numbness,tingling, weakness, dyspnea, & hoarseness of voice will be assessed at 0, 4, 6, 12, 18 & 24 hours after surgery	—

Measure

Time frame

1.To compare pulmonary functions Forced vital capacity, forced expiratory volume in 1second & peak expiratory flow rate between Interscalene block & a combination of Subomohyoid anterior Suprascapular nerve block & Axillary nerve block. 2.To compare block related adverse outcomes such as numbness,tingling, weakness, dyspnea & hoarseness of voice between Interscalene block & a combination of Subomohyoid anterior Suprascapular nerve block & Axillary nerve block. Timepoint: 1.Forced vital capacity, forced expiratory volume in 1second & peak expiratory flow rate will be assessed 30 min before & after the regional procedure. The test will be repeated three times & the best values of respiratory parameters will be recorded. 2.Block related adverse outcomes such as numbness,tingling, weakness, dyspnea, & hoarseness of voice will be assessed at 0, 4, 6, 12, 18 & 24 hours after surgery

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Countries

India

Contacts

Public ContactDr Vinod Hosalli

sapthagiri institute of medical sciences

vinodhosallidr@gmail.com08022188702

Outcome results